/**
 * @brief       functions about system time.    
 * @author      taoism
 * @version     v0.1.0
 * @copyright   
 * @note
 */

_Pragma("once")

#include "t_common.h"

/**
 * @brief   get system timestamp. 
 * @param   null
 * @return  timestamp with millisecond
 */
T_API int64 t_get_timestamp();
